<div id="search">
	<input id="txtSearch"><button id="btnSearch">Find</button>
</div>

<script>
	$(document).ready(function(){
		$("#btnSearch").on("click",function(){
			var txtSearch = $("#txtSearch").val();
			window.location.href = "index.php?r=items/display/search&s="+txtSearch;
		});
	});

</script>